<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryRef" :inline="true" v-show="showSearch" label-width="100px">
      <el-form-item label="专业代码" prop="majorCode">
        <el-input
          v-model="queryParams.majorCode"
          placeholder="请输入专业代码"
          clearable
          @keyup.enter="handleQuery"
        />
      </el-form-item>
      <el-form-item label="专业名称" prop="majorName">
        <el-input
          v-model="queryParams.majorName"
          placeholder="请输入专业名称"
          clearable
          @keyup.enter="handleQuery"
        />
      </el-form-item>
      <el-form-item label="专业英文名称" prop="majorNameEn">
        <el-input
          v-model="queryParams.majorNameEn"
          placeholder="请输入专业英文名称"
          clearable
          @keyup.enter="handleQuery"
        />
      </el-form-item>
      <!-- 搜索表单中的所属学院 -->
      <el-form-item label="所属学院" prop="collegeId">
        <el-select
          v-model="queryParams.collegeId"
          placeholder="请输入学院名称/代码"
          clearable
          filterable
          remote
          :remote-method="filterColleges"
          @change="handleQuery"
          style="width: 200px;"
        >
          <el-option
            v-for="college in filteredColleges"
            :key="college.collegeId"
            :label="`${college.collegeName} (${college.collegeCode})`"
            :value="college.collegeId"
          >
            <span style="float: left">{{ college.collegeName }}</span>
            <span style="float: right; color: #8492a6; font-size: 13px">{{ college.collegeCode }}</span>
          </el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="学制" prop="educationalSystem">
        <el-input
          v-model="queryParams.educationalSystem"
          placeholder="请输入学制"
          clearable
          @keyup.enter="handleQuery"
        />
      </el-form-item>
      <el-form-item label="培养类型" prop="cultureCategory">
        <el-select v-model="queryParams.cultureCategory" placeholder="请选择培养类型" clearable style="width: 200px;">
          <el-option
            v-for="dict in culture_category"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="开设时间" prop="startTime">
        <el-date-picker clearable
          v-model="queryParams.startTime"
          type="date"
          value-format="YYYY-MM-DD"
          placeholder="请选择开设时间">
        </el-date-picker>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
        <el-button icon="Refresh" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="Plus"
          @click="handleAdd"
          v-hasPermi="['major:major:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="Edit"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['major:major:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="Delete"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['major:major:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="Download"
          @click="handleExport"
          v-hasPermi="['major:major:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="majorList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <!-- <el-table-column label="唯一标识" align="center" prop="id" /> -->
      <el-table-column label="专业代码" align="center" prop="majorCode" />
      <el-table-column label="专业名称" align="center" prop="majorName" />
      <el-table-column label="专业英文名称" align="center" prop="majorNameEn" />
      <!-- <el-table-column label="所属学院ID" align="center" prop="collegeId" /> -->
      <el-table-column label="所属学院" align="center">
        <template #default="scope">
          {{ getCollegeName(scope.row.collegeName) }}
        </template>
      </el-table-column>
      <el-table-column label="专业简介" align="center" prop="majorIntroduction" />
      <el-table-column label="学制" align="center" prop="educationalSystem" />
      <el-table-column label="培养类型" align="center" prop="cultureCategory">
        <template #default="scope">
          <dict-tag :options="culture_category" :value="scope.row.cultureCategory"/>
        </template>
      </el-table-column>
      <el-table-column label="开设时间" align="center" prop="startTime" width="180">
        <template #default="scope">
          <span>{{ parseTime(scope.row.startTime, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template #default="scope">
          <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)" v-hasPermi="['major:major:edit']">修改</el-button>
          <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)" v-hasPermi="['major:major:remove']">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      v-model:page="queryParams.pageNum"
      v-model:limit="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改专业信息管理对话框 -->
    <el-dialog :title="title" v-model="open" width="680px" append-to-body>
      <el-form ref="majorRef" :model="form" :rules="rules" label-width="100px">
        <el-row :gutter="20">
          <el-col :span="12">
            <el-form-item label="专业代码" prop="majorCode">
              <el-input v-model="form.majorCode" placeholder="请输入" />
            </el-form-item>

            <el-form-item label="专业名称" prop="majorName">
              <el-input v-model="form.majorName" placeholder="请输入" />
            </el-form-item>

            <el-form-item label="英文名称" prop="majorNameEn">
              <el-input v-model="form.majorNameEn" placeholder="请输入" />
            </el-form-item>

            <el-form-item label="所属学院" prop="collegeId">
              <el-select
                v-model="form.collegeId"
                placeholder="搜索学院"
                filterable
                remote
                :remote-method="filterColleges"
                :loading="collegeLoading"
                style="width: 100%"
              >
                <el-option
                  v-for="college in filteredColleges"
                  :key="college.collegeId"
                  :label="`${college.collegeName} (${college.collegeCode})`"
                  :value="college.collegeCode"
                />
              </el-select>
            </el-form-item>
          </el-col>

          <el-col :span="12">
            <el-form-item label="学制" prop="educationalSystem">
              <el-input v-model="form.educationalSystem" placeholder="请输入" />
            </el-form-item>

            <el-form-item label="培养类型" prop="cultureCategory">
              <el-select
                v-model="form.cultureCategory"
                placeholder="请选择"
                style="width: 100%"
              >
                <el-option
                  v-for="dict in culture_category"
                  :key="dict.value"
                  :label="dict.label"
                  :value="parseInt(dict.value)"
                />
              </el-select>
            </el-form-item>

            <el-form-item label="开设时间" prop="startTime">
              <el-date-picker
                v-model="form.startTime"
                type="date"
                value-format="YYYY-MM-DD"
                placeholder="选择日期"
                style="width: 100%"
              />
            </el-form-item>
          </el-col>
        </el-row>

        <el-form-item label="专业简介" prop="majorIntroduction">
          <el-input
            v-model="form.majorIntroduction"
            type="textarea"
            :rows="3"
            placeholder="请输入专业简介"
            style="width: 100%"
          />
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="Major">
import { listMajor, getMajor, delMajor, addMajor, updateMajor } from "@/api/major/major";
import { listCollege } from "@/api/college/college";
import { debounce } from 'lodash';
const { proxy } = getCurrentInstance();
const { culture_category } = proxy.useDict('culture_category');

const majorList = ref([]);
const open = ref(false);
const loading = ref(true);
const showSearch = ref(true);
const ids = ref([]);
const single = ref(true);
const multiple = ref(true);
const total = ref(0);
const title = ref("");
const collegeList = ref([]);
const filteredColleges = ref([]);
const collegeLoading = ref(false);
const data = reactive({
  form: {},
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    majorCode: null,
    majorName: null,
    majorNameEn: null,
    collegeId: null,
    majorIntroduction: null,
    educationalSystem: null,
    cultureCategory: null,
    startTime: null
  },
  rules: {
  }
});

const { queryParams, form, rules } = toRefs(data);

/** 查询专业信息管理列表 */
function getList() {
  loading.value = true;
  listMajor(queryParams.value).then(response => {
    majorList.value = response.rows;
    total.value = response.total;
    loading.value = false;
  });
}

// 取消按钮
function cancel() {
  open.value = false;
  reset();
}

// 表单重置
function reset() {
  form.value = {
    id: null,
    majorCode: null,
    majorName: null,
    majorNameEn: null,
    collegeId: null,
    majorIntroduction: null,
    educationalSystem: null,
    cultureCategory: null,
    startTime: null
  };
  proxy.resetForm("majorRef");
}

/** 搜索按钮操作 */
function handleQuery() {
  queryParams.value.pageNum = 1;
  getList();
}

/** 重置按钮操作 */
function resetQuery() {
  proxy.resetForm("queryRef");
  handleQuery();
}

// 多选框选中数据
function handleSelectionChange(selection) {
  ids.value = selection.map(item => item.id);
  single.value = selection.length != 1;
  multiple.value = !selection.length;
}

/** 新增按钮操作 */
function handleAdd() {
  reset();
  open.value = true;
  title.value = "添加专业信息管理";
}

/** 修改按钮操作 */
function handleUpdate(row) {
  reset();
  const _id = row.id || ids.value
  getMajor(_id).then(response => {
    form.value = response.data;
    open.value = true;
    title.value = "修改专业信息管理";
  });
}

/** 提交按钮 */
function submitForm() {
  proxy.$refs["majorRef"].validate(valid => {
    if (valid) {
      if (form.value.id != null) {
        updateMajor(form.value).then(response => {
          proxy.$modal.msgSuccess("修改成功");
          open.value = false;
          getList();
        });
      } else {
        addMajor(form.value).then(response => {
          proxy.$modal.msgSuccess("新增成功");
          open.value = false;
          getList();
        });
      }
    }
  });
}

/** 删除按钮操作 */
function handleDelete(row) {
  const _ids = row.id || ids.value;
  proxy.$modal.confirm('是否确认删除专业信息管理编号为"' + _ids + '"的数据项？').then(function() {
    return delMajor(_ids);
  }).then(() => {
    getList();
    proxy.$modal.msgSuccess("删除成功");
  }).catch(() => {});
}

/** 导出按钮操作 */
function handleExport() {
  proxy.download('major/major/export', {
    ...queryParams.value
  }, `major_${new Date().getTime()}.xlsx`)
}
// 获取学院列表并设置过滤列表
const getCollegeList = async () => {
  try {
    const res = await listCollege({ pageSize: 1000 });
    collegeList.value = res.rows;
    filteredColleges.value = res.rows;
  } catch (err) {
    console.error('获取学院列表失败:', err);
    proxy.$modal.msgError("学院数据加载失败");
  }
};

// 学院过滤方法
const filterColleges = debounce((query) => {
  collegeLoading.value = true;
  try {
    if (query) {
      const lowerQuery = query.toLowerCase();
      filteredColleges.value = collegeList.value.filter(college =>
        college.collegeName?.toLowerCase().includes(lowerQuery) ||
        college.collegeCode?.includes(query)
      );
    } else {
      filteredColleges.value = collegeList.value;
    }
  } finally {
    collegeLoading.value = false;
  }
}, 300);

// 获取学院名称
const getCollegeName = (collegeId) => {
  if (!collegeId) return '-';
  const college = collegeList.value.find(c => c.collegeId === collegeId);
  return college ? `${college.collegeName} (${college.collegeCode})` : '未知学院';
};
// 初始化数据
onMounted(() => {
  getCollegeList();
  getList();
});
</script>
